Issue No. 02 - March/April (2002 vol. 22)
<p>A portable system using small, high-density optical discs with prerecorded content and space for consumer-written data gives content owners noninvasive access control.</p>
D. H. Davies, "DataPlay's Mobile Information Distribution and Storage Technology," in IEEE Micro, vol. 22, no. , pp. 8-15, 2002.